docs: expand module docs, add note about primary connection limitations

docs/modules/Networkmanager.md

@@ -1,4 +1,10 @@
-Displays network connectivity information. Requires NetworkManager.
+Displays the current network connection state of NetworkManager. Supports wired ethernet, wifi,
+cellular data and VPN connections among others.
+
+This module uses NetworkManager's so-called primary connection, and therefore inherits its
+limitation of only being able to display the "top-level" connection. For example, if we have a VPN
+connection over a wifi connection it will only display the former, until it is disconnected, at
+which point it will display the latter. A solution to this is currently in the works.
 
 ## Configuration
 
@@ -9,57 +15,53 @@ Displays network connectivity information. Requires NetworkManager.
 | `icon_size` | `integer` | `24`    | Size to render icon at. |
 
 <details>
-<summary>JSON</summary>
+  <summary>JSON</summary>
-
-```json
-{
-  "end": [
-    {
-      "type": "networkmanager",
-      "icon_size": 32
-    }
-  ]
-}
-```
 
+  ```json
+  {
+    "end": [
+      {
+        "type": "networkmanager",
+        "icon_size": 32
+      }
+    ]
+  }
+  ```
 </details>
 
 <details>
-<summary>TOML</summary>
+  <summary>TOML</summary>
-
-```toml
-[[end]]
-type = "networkmanager"
-icon_size = 32
-```
 
+  ```toml
+  [[end]]
+  type = "networkmanager"
+  icon_size = 32
+  ```
 </details>
 
 <details>
-<summary>YAML</summary>
+  <summary>YAML</summary>
-
-```yaml
-end:
-  - type: "networkmanager"
-    icon_size: 32
-```
 
+  ```yaml
+  end:
+    - type: "networkmanager"
+      icon_size: 32
+  ```
 </details>
 
 <details>
-<summary>Corn</summary>
+  <summary>Corn</summary>
-
-```corn
-{
-  end = [
-    {
-      type = "networkmanager"
-      icon_size = 32
-    }
-  ]
-}
-```
 
+  ```corn
+  {
+    end = [
+      {
+        type = "networkmanager"
+        icon_size = 32
+      }
+    ]
+  }
+  ```
 </details>
 
 ## Styling